Cleary Gottlieb Steen & Hamilton boasts a dynamic cross-border antitrust practice, adept at navigating complex cartel matters. The team’s expertise spans civil and criminal investigations, litigation defense, and enforcement actions, with a comprehensive regulatory offering supported by former FTC and DOJ officials. The practice is jointly steered by Leah Brannon and Heather Nyong’o. Brannon excels in investigations led by the DOJ, FTC, and European Commission, while Nyong’o regularly represents multinational corporations and executives in high-stakes domestic and international cartel investigations and litigation. Elsewhere in the team, Kenneth Reinker stands out for his skill in applying complex economic analysis to antitrust challenges across the healthcare, pharmaceuticals, tech, and finance sectors, while Daniel Culley is noted for his experience in cross-examinations and focus on high-tech industries and two-sided markets. In San Francisco, Brian Byrne shines in cross-border enforcement and antitrust litigation, including M&A reviews. Jeremy Calsyn adds further depth, specializing in global cartel investigations and follow-on class actions. Attorneys are based in Washington DC unless otherwise stated.

Skilled in handling complex cartel matters, Gibson, Dunn & Crutcher LLP is well-equipped to advise clients on investigations, DOJ and FTC enforcement actions, and compliance issues. The team operates across a broad range of industries, including financial services, pharmaceuticals, retail, and high-tech. At the helm of the practice is a trio of experts: San Francisco-based Rachel Brass, a former FTC Deputy Director with extensive experience in international investigations, having represented clients before authorities including the FTC, DOJ, European Commission, Korean Fair Trade Commission, and Australian Competition and Consumer Commission; Stephen Weissman, recognized for his experience assisting clients in investigations by multiple enforcement agencies; and Cynthia Richman, who is noted for her work in DOJ grand jury investigations and defending clients in state and federal courts. Adding further depth, Scott Hammond and Jeremy Robison are key figures for multinational clients involved in cartel investigations outside the US and EU. Robison focuses on matters like price-fixing, bid-rigging, and no-poach agreements, while Hammond is a trusted advisor for crisis management. Attorneys are based in Washington DC unless otherwise stated.

With a team that includes numerous former DOJ and FTC lawyers, Latham & Watkins LLP excels in cartel investigations and follow-on litigation defense. Collaborating seamlessly with its European offices, the group represents domestic and multinational clients across a myriad of sectors including pharmaceuticals, retail, software, real estate, and healthcare. The team is jointly led by Michael G. Egge, global chair in Washington DC, Belinda Lee, global vice chair in San Francisco, and Washington DC-based vice chair Lindsey Champlin. Lee is a trusted advisor to clients in the US, Europe, and Asia, guiding them through government investigations and proceedings worldwide, while Egge has an established track record of representing clients in the technology and life sciences sectors. Based in San Francisco, Niall Lynch is highly regarded for his expertise in criminal and civil price-fixing investigations, frequently handling cases spanning multiple jurisdictions, including Brazil, Korea, the UK, and Canada. In New York, former DOJ trial lawyer Elizabeth Prewitt is noted for her expertise on the full spectrum of cartel matters, including investigations, trials, and issues related to price fixing, bid rigging, and no-poach agreements. Amanda Reeves, based in DC, advises across an array of industries, including high-tech, entertainment, media, life sciences, healthcare, and consumer products.

With its renowned international reach, White & Case LLP is a trusted advisor for US-based companies navigating global cartel proceedings, excelling in both criminal cases and related damages claims. The team is also highly experienced in representing international clients in Sherman Act matters, with expertise spanning summary dispositions, trials, and appeals in US courts. Seasoned trial lawyer Mark Gidley advises clients in the fintech, education, financial services, and energy sectors. He leads the group alongside Rebecca Farrington, who focuses on on global merger and non-merger investigations, private antitrust litigation, and counseling on antitrust issues. The firm’s pharmaceuticals and healthcare group, led by Peter Carney, brings niche expertise to investigations and antitrust litigation, including cases involving allegations of product hopping. Adam Acosta is noted for his focus on government investigations and antitrust disputes. All mentioned attorneys are based in Washington DC.

WilmerHale is widely regarded for its deep expertise in handling complex, multi-jurisdictional cartel cases, seamlessly coordinating efforts across the firm’s US, European, and Asian offices. The practice has a strong record of securing non-prosecution agreements and leniency protections for clients. Leading the team is Thomas Mueller, a go-to expert for global cartel enforcement issues. Elsewhere in the team, Jennifer Milici offers critical guidance on regulatory matters, while, Steven Cherry, known for his litigation expertise, excels in representing clients in trial and appellate courts, including the US Supreme Court, with a focus on government investigations, class actions, and arbitration. In New York, David Gringer leads antitrust disputes involving the DOJ, FTC, state attorneys general, claimants, and private class plaintiffs. In Los Angeles, Nana Wilberforce brings his extensive experience in defending against price-fixing allegations by the DOJ and European Commission, with a particular focus on sectors like natural gas, technology, auto parts manufacturing, and financial services. Unless stated otherwise, all mentioned lawyers are based in Washington DC.

Arnold & Porter’s antitrust and competition team delivers top-tier advice on all facets of cartel matters, offering top-tier advice in both government investigations and private litigation, with expertise across industries such as auto parts, municipal bonds, air cargo, maritime shipping, industrial chemicals, and orthopedic implants. Seamlessly combining expertise in defending government investigations with skill in private antitrust litigation, the team is also at the forefront of addressing antitrust issues tied to ESG concerns. The antitrust group is jointly steered by Debbie Feinstein and Michael B Bernstein, with Chicago-based Andre Geverola heading the cartel investigations practice and bringing exceptional insight into labor, financial markets, healthcare, and pharmaceuticals. With a background as the Director of Criminal Litigation in the DOJ’s Antitrust Division, he brings valuable experience in managing enforcement actions from regulatory bodies in Japan, Korea, Vietnam, Hong Kong, and the European Union. James Cooper is highly regarded for his expertise in multi-district disputes, while trial lawyer Laura Shores further strengthens the team’s litigation capabilities. Unless otherwise indicated, all mentioned attorneys are based in Washington DC.

Davis Polk & Wardwell LLP’s antitrust and competition practice, in collaboration with the firm’s white-collar experts, provides comprehensive counsel on both criminal and civil cartel matters, with a strong focus on multijurisdictional proceedings. The group comfortably operates across an array of sectors, with particular capabilities in the financial services, retail, and high-tech industries.The practice is under the joint leadership of Washington DC-based Jarrett Arp and New York-based Arthur Burke. Arp offers extensive expertise in antitrust law, investigations, and litigation at both trial and appellate levels, while Burke is sought after by technology, media, and financial sector clients for guidance on cartel issues, antitrust aspects of M&A, civil litigation, and investigations. New York-based Paul Mishkin is highly regarded for his experience in cases involving alleged manipulation of benchmark rates and financial product pricing.

The cartel group at Hogan Lovells US LLP is frequently engaged by clients hailing from the worlds of TMT, life sciences, automotive, defense, and financial services, handling both domestic and international cartel investigations. Drawing on the firm’s global antitrust expertise, the team assists with internal investigations, leniency applications, and cases tied to employment and public procurement. Steering the practice is Kathryn Hellings, who stands out for her extensive experience in no-poach agreements. Elsewhere in the team, Dan Shulak frequently handles international and domestic investigations and advises multinational clients facing scrutiny from multiple enforcement agencies, while Melissa Levitt is noted for her focus on criminal antitrust investigations, assisting both companies and individuals. All mentioned lawyers are based in Washington DC.

With a team of seasoned cartel specialists, many with prior experience at the DOJ and FTC, Jones Day is particularly active in the healthcare, pharmaceutical, energy, and technology sectors. Practice head Craig Waldman in Washington, DC, offers a comprehensive practice that includes advising on ESG-related cartel issues. Also based in Washington, Julie McEvoy brings significant expertise in representing clients through both investigations and trials. Lauded as ‘thoughtful, creative and experienced’, Kevin Hart is noted for his experience in criminal cartel investigations, prosecutions, and litigation, including federal jury trials and grand jury proceedings. John Majoras is a key port of call for multinational companies facing significant and high-profile antitrust lawsuits and investigations. Eric Enson is no longer at the firm.

Counting domestic and multinational corporations, as well as individuals among its key roster of clients, Kirkland & Ellis LLP leverages its extensive expertise in both civil and criminal antitrust matters involving the US government, foreign authorities, and international entities like the European Commission. At the helm of the practice is a trio of experts: team is co-led by three seasoned attorneys: Daniel Laytin, whose broad practice spans industries such as material sciences, pharmaceuticals, energy, and food; James Mutchnik, who is highly regarded for his focus on antitrust issues intersecting with white-collar crime, including price-fixing and price discrimination defenses; and Christa Cottrell, a skilled litigator and accomplished trial lawyer. All listed attorneys are based in Chicago.

Morrison Foerster’s antitrust team excels at handling complex matters across the technology, telecommunications, financial services, transportation, healthcare, and life sciences industries, working seamlessly with the firm’s global offices. The group is particularly adept at advising both domestic and international tech companies, including Japan-based clients navigating US antitrust issues. Co-chair Lisa Phelan is a trusted advocate for clients navigating high-stakes government investigations, renowned for her expertise in defending against no poach, information-sharing, and bid-rigging matters. Fellow co-chair Alexander Okuliar represents major clients in litigation, government investigations, and merger reviews. San Francisco-based Eliot Adelson is noted for his expertise in internal and government investigations across multiple jurisdictions. Former DOJ Antitrust Division trial attorney Megan Gerking is recognized for her advice on antitrust matters linked to industry consortiums and trade associations, as well as her skill in multidistrict antitrust litigation. Joseph Folio is noted for his experience in government investigations and high-profile litigation. Unless otherwise noted, all practitioners are based in Washington, DC.

The cartel group at Paul, Weiss, Rifkind, Wharton & Garrison LLP is recognized for its strong presence in the financial services sector, providing expert guidance in multi-regulator investigations related to price-fixing, bid-rigging, and market allocation allegations. The practice fields a team of experienced practitioners, including Aidan Synnott, who frequently represents clients in antitrust investigations led by US and EU regulatory agencies and litigation specialist Brette Tannenbaum, who is noted for her focus on unfair competition litigation. Joseph J. Bial, who splits his time between New York and Washington DC, represents clients in cartel litigation across federal district and appellate courts, while Tee St. Matthew-Daniel has a broad antitrust practice that incorporates civil and criminal investigations and litigation, merger clearance, antitrust counselling and compliance matters. All mentioned lawyers are based in New York unless stated otherwise.

Simpson Thacher & Bartlett LLP’s antitrust and trade regulation practice boasts a robust team of former enforcement attorneys, prosecutors, and trial lawyers from the FTC and DOJ, offering comprehensive support across a wide range of cartel matters. Serving clients in sectors such as software, transportation, defense, and insurance, the team handles internal investigations, leniency applications, criminal and regulatory probes, and dawn raid preparedness. With expertise spanning allegations of price fixing, market allocation, bid rigging, and no-poach conduct, the group is co-led by Peter Guryan in New York and Washington DC-based John Terzaken and Sara Razi. Terzaken, who is praised for his 'level headedness and sound judgment', is a key port of call for corporate and individual clients involved in government enforcement of antitrust, fraud and other white collar violations, while Razi regularly represents clients in antitrust investigations by the DOJ, FTC, and States. Abram Ellis stands out for his work in cartel-related civil litigation, and Jeffrey Knox is highly regarded for representing multinational corporations, independent board committees, and senior executives in investigations by federal and state regulators. Unless otherwise noted, all attorneys are based in Washington DC.

Recognized for its deep expertise, Winston & Strawn LLP is a trusted advisor to corporations and individuals across various industries, with recent work in the food, telecoms and finance sectors. The team is jointly led by Eva Cole and James Herbison. Cole specializes in international cartel investigations and class actions, frequently engaging with antitrust authorities in Europe, Australia, Brazil, Korea, and Mexico, while Chicago-based Herbison focuses on complex litigation with an emphasis on civil and criminal antitrust, government investigation, and counselling matters. Trial lawyer Jeffrey Kessler handles a diverse caseload spanning criminal and civil investigations, jury trials, and litigation for both domestic and international clients. Jeffrey Amato is a key contact for international cartel litigation and government investigations. Unless stated otherwise, all mentioned attorneys are based in New York. Neely Agin left the firm in February 2024.

Praised for its ability to provide 'practical advice', the boutique firm Axinn Veltrop & Harkrider is recognized for its expertise in managing complex cartel cases before antitrust agencies globally. The firm stands out for its strength in price-fixing investigations and its specialized knowledge at the intersection of antitrust and intellectual property law. Steering the practice is Michael Keeley, who is noted for his experience in defending litigated merger challenges. He is supported by the 'very smart, experienced and collaborative' Tiffany Rider, who represents both corporations and individuals in matters before the DOJ, the European Commission, and the Canadian Competition Bureau. James Attridge, described as 'very thorough, measured, smart, and creative', brings a wealth of experience in leniency applications, investigations into labor-market collusion, and internal probes. All mentioned lawyers are based in Washington DC.

Lauded as ‘strategic and client-focused’, the cartel group at Baker Botts L.L.P. is renowned for its expertise across industries such as pharmaceuticals, healthcare, manufacturing, automotive, and TMT. The team handles all aspects of cartel investigations, from dawn raids and leniency applications to plea negotiations and government subpoena responses, with expertise in follow-on class actions. Spearheading the team is John Taladay, who regularly represents clients in proceedings involving the FTC, DOJ Antitrust Division, and the European Commission, with a strong focus on cases involving price fixing, bid rigging, market allocation, and unfair trade practices. Erik Koons handles high-profile antitrust litigation, including cases related to tying, bundling, and monopolization. The San Francisco team was bolstered in February 2025 by the addition of Matthew Jacobs, formerly of DLA Piper LLP (US). All mentioned attorneys are based in Washington DC unless otherwise stated.

DLA Piper LLP (US)' s cartel team offers a globally coordinated approach, advising multinational clients before regulators and negotiating resolutions, with extensive experience in handling leniency and amnesty applications, as well as assisting on litigation defense. The team is well-versed in representing companies in competition investigations and enforcement actions worldwide, including those led by authorities such as the DOJ, FTC, European Commission, and others across key international jurisdictions. John Hamill, based in Chicago, leads the practice with expertise in highly-regulated industries such as healthcare, insurance, and life sciences. Washington DC-based Carsten Reichel regularly represents corporations and individuals in government antitrust and other white-collar investigations and follow-on civil litigation. Matthew Jacobs departed the team in February 2025 to Baker Botts L.L.P..

The 'highly experienced' team at Linklaters LLP draws on its expertise in sectors like pharmaceuticals, healthcare, and financial services to guide clients through both domestic and international cartel investigations, along with related civil matters, including class actions and merger clearance. Practice head Douglas Tween, who is praised as a 'star of the cartel bar', is noted for his expertise in crisis management, internal investigations, and defending clients in regulatory and criminal cases. John Eichlin excels at navigating the intersection of consumer protection regulations and antitrust enforcement. All mentioned lawyers are based in New York.

O'Melveny‘s antitrust and competition practice offers comprehensive support across all stages of cartel proceedings, from initial investigations to trial and follow-on civil litigation. The team has been particularly active in labor market-related matters, including allegations of no-poach agreements and other hiring practices. The team is co-led in Washington DC by Ian Simmons, an expert in multidistrict litigation with significant experience in the intersection of antitrust and intellectual property, and Ben Bradshaw, a key advisor to financial services clients. In San Francisco, Anna Fletcher and Michael Tubach are recognized for their work on cartel trials. Brian Quinn is noted for his experience in trials, appeals and grand-jury investigations, as well as class-action litigation.

Operating across a myriad of sectors including technology, automotive, airline, financial services and transportation, the cartel group at Vinson & Elkins LLP is is well-equipped to handle all aspects of cartel investigations. Led by Hill Wellford and Jason Powers, the team draws on deep expertise in both international mandates and energy-related matters. Craig Seebald co-leads the firm’s litigation and regulatory practice, with a focus on multijurisdictional cartel investigations and follow-on litigation, while Darren Tucker specializes in investigations within the technology, energy, and pharmaceutical sectors. In San Francisco, Michael Scarborough and Dylan Ballard are experienced trial lawyers, representing clients in proceedings with federal and state enforcement agencies. Unless stated otherwise, mentioned lawyers are based in Washington DC.

Drawing considerable praise for its 'meticulous attention to detail' and ability to find 'creative solutions', the cartel group at Baker McKenzie LLP leverages the firm’s global reach to navigate complex cartel investigations, civil litigation, and merger clearance across industries such as luxury fashion, shipping, and security. Co-head Mark Hamer regularly leads on several major antitrust litigation matters and has been described as 'extremely accessible and responsive.' He leads the team alongside the 'excellent' Creighton Macy, who assists clients on all aspects of the antitrust regulatory and litigation process. Brian Burke provides strategic counsel to clients in healthcare, technology, power infrastructure, and telecommunications, while New York-based Jeffrey Martino brings extensive experience in both domestic and international cartel matters, particularly where antitrust and white-collar crime intersect. Ashley Eickhof is a key player in criminal cartel defense, frequently representing clients in federal court. Unless otherwise stated, all mentioned lawyers are based in Washington DC.

Milbank‘s antitrust team is well-versed in multi-jurisdictional cartel investigations, representing clients before enforcement agencies in the US, EU, and other key jurisdictions. The group also excels in criminal and civil cartel litigation, including class actions and market manipulation claims. Spearheading the team is Fiona Schaeffer, who frequently represents clients in FTC and DOJ investigations, as well as follow-on class actions both in the US and abroad. Adam Di Vincenzo is noted for his focus on government reviews of mergers and acquisitions, antitrust investigations, and litigation.

With a strong global footprint, A&O Shearman advises both domestic and multinational corporations, as well as individuals, on criminal and civil antitrust matters before the DOJ, European Commission, and EU member state authorities. The group has particular strength in the financial services and oil and gas sectors. Practice head David Higbee is a key contact for government and internal investigations, serving as a trusted advisor to clients across the energy, pharmaceutical, chemical, technology, entertainment, hospitality, gaming, defense, and financial services sectors. Todd Stenerson leads the firm's antitrust litigation practice, and is noted for his extensive antitrust, multi-district litigation and arbitration experience. Djordje Petkoski focuses on criminal antitrust cases and follow-on civil class actions.

With a strong track record in antitrust investigations, prosecutions, and enforcement actions, Sheppard, Mullin, Richter & Hampton LLP is frequently instructed by both domestic and multinational clients. Renowned for its expertise in the technology sector, the group brings deep insight into the intersection of antitrust and intellectual property law, handling complex issues like patent pooling, product distribution, and licensing restrictions. Based in Washington DC, the practice is co-led by Leo Caseria, who handles federal and state cartel investigations, and former DOJ official Ann O’Brien, who brings extensive experience in domestic, international, and multi-agency cartel matters, including federal jury trials.